x = int(input())
if 400<=x and x <=599:
    print("8")
elif 600<=x and x <=799:
    print("7")  
elif 800<=x and x <=999:
    print("6")  
elif 1000<=x and x <=1199:
    print("5")  
elif 1200<=x and x <=1399:
    print("4")  
elif 1400<=x and x <=1599:
    print("3")  
elif 1600<=x and x <=1799:
    print("2")  
else:
    print("1")             x = int(input()) x int(input()) int input() input if 400<=x and x <=599:
    print("8")
elif 600<=x and x <=799:
    print("7")  
elif 800<=x and x <=999:
    print("6")  
elif 1000<=x and x <=1199:
    print("5")  
elif 1200<=x and x <=1399:
    print("4")  
elif 1400<=x and x <=1599:
    print("3")  
elif 1600<=x and x <=1799:
    print("2")  
else:
    print("1")             400<=x and x <=599 400<=x 400 x x <=599 x 599 print("8") print "8" elif 600<=x and x <=799:
    print("7")   600<=x and x <=799 600<=x 600 x x <=799 x 799 print("7") print "7" elif 800<=x and x <=999:
    print("6")   800<=x and x <=999 800<=x 800 x x <=999 x 999 print("6") print "6" elif 1000<=x and x <=1199:
    print("5")   1000<=x and x <=1199 1000<=x 1000 x x <=1199 x 1199 print("5") print "5" elif 1200<=x and x <=1399:
    print("4")   1200<=x and x <=1399 1200<=x 1200 x x <=1399 x 1399 print("4") print "4" elif 1400<=x and x <=1599:
    print("3")   1400<=x and x <=1599 1400<=x 1400 x x <=1599 x 1599 print("3") print "3" elif 1600<=x and x <=1799:
    print("2")   1600<=x and x <=1799 1600<=x 1600 x x <=1799 x 1799 print("2") print "2" print("1") print "1" x = int(input()) int(input()) x
x = int(input())
if 400<=x and x <=599:
    print("8")
elif 600<=x and x <=799:
    print("7")  
elif 800<=x and x <=999:
    print("6")  
elif 1000<=x and x <=1199:
    print("5")  
elif 1200<=x and x <=1399:
    print("4")  
elif 1400<=x and x <=1599:
    print("3")  
elif 1600<=x and x <=1799:
    print("2")  
else:
    print("1")            
